Description: Although initially skeptical about the effectiveness of the hypsometer, Secretary Joseph Henry soon recognized the value of the instrument, which he discovered from his colleagues in the scientific field.
Description: [caption id="" align="aligncenter" width="430" caption="Smithsonian Secretary S. Dillon Ripley (1913-2001) riding a scooter at the 1974 Folklife Festival in the Mississippi delta section, with a cotton field behind him, by Unidentified photographer, Photographic print, Smithsonian Institution Archives, Record Unit 613, Box 269, Folder: SDR Photos, Negative number:
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